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DOI	10.1039/d0ee02999h
	Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes
	Chen Z.; Mo F.; Wang T.; Yang Q.; Huang Z.; Wang D.; Liang G.; Chen A.; Li Q.; Guo Y.; Li X.; Fan J.; Zhi C.
发表日期	2021
ISSN	17545692
起始页码	2441
结束页码	2450
卷号	14 期号:4
英文摘要	Zinc ion batteries (ZIBs) typically work well in aqueous electrolytes. Most high-performance cathode materials of aqueous ZIBs exhibit much-deteriorated capacity, voltage plateau and rate capability in organic electrolytes. It remains a challenge to have a Zn battery that is highly compatible with both aqueous and organic electrolytes. Herein, a conversion-type Zn-Se battery is constructed, which delivers a superior performance in both organic and aqueous electrolytes benefiting from a highly reversible conversion reaction between Se and ZnSe. Extraordinary capacities in organic systems (551 mA h gSe-1) and aqueous systems (611 mA h gSe-1) were successfully achieved, accompanied by a remarkable rate performance and cycling performance in each of the two systems. In addition, very low voltage plateau slopes, 0.94 V/(A h g-1) and 0.61 V/(A h g-1), are obtained for organic and aqueous systems, respectively, due to the advanced conversion mechanism. These unique features equip these Zn-Se batteries with unprecedented energy densities of up to 581 W h kgSe-1 (290 W h kgSe/CMK-3-1) for the organic system and 751 W h kgSe-1 (375 W h kgSe/CMK-3-1) for the aqueous system. Our research has developed a new Zn battery chemistry that benefits from a conversion mechanism and is highly compatible with both organic and aqueous electrolytes, opening a door for zinc batteries to achieve a higher energy density and better compatibility with various electrolytes. This journal is © The Royal Society of Chemistry.
英文关键词	Cathodes; Electrolytes; II-VI semiconductors; Secondary batteries; Zinc; Zinc Selenide; Aqueous electrolyte; Battery chemistries; Conversion mechanism; Conversion reactions; Cycling performance; Higher energy density; Organic electrolyte; Rate capabilities; Selenium compounds; aqueous solution; electrolyte; selenium; zinc
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190726
作者单位	Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong; Centre for Functional Photonics, City University of Hong Kong, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	Chen Z.,Mo F.,Wang T.,et al. Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes[J],2021,14(4).
APA	Chen Z..,Mo F..,Wang T..,Yang Q..,Huang Z..,...&Zhi C..(2021).Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes.Energy & Environmental Science,14(4).
MLA	Chen Z.,et al."Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes".Energy & Environmental Science 14.4(2021).